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Find answers to frequently asked questions about our products here. Need a question answered that's not listed in the categories, contact SpeedClean or ask a question via the links below.

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CoilJet

My CoilJet doesn't power on. What could be causing this?
How heavy is the CoilJet?
How long will the battery last?
Do I need to do anything special to care for the battery?
Will the CoilJet damage my coils?
Why is the CoilJet superior to a pressure washer?
Why is the CoilJet superior to a pump sprayer?
Why is the CoilJet designed for low flow?
How many condenser coils can it clean on one tank?
Can I use harsh chemicals or acids in the CoilJet?
What is the best type of coil cleaner to use with the CoilJet?
How will the CoilJet save HVAC technicians money?
How will the CoilJet save my customers money?
Can I clean any types of coils with the CoilJet?
What is the most important accessory to get with my CoilJet?
Are there other accessories available?
Can I use the CoilJet while the charger cord is plugged in?
What CoilJet battery should I use for my CoilJet model?
CoilJet Warranty Information
Where can I find the CoilJet user manual?
Looking for more information?
My battery doesn't seem to be holding a charge. What could be the reason?
Model number CJ 75 How long (minute/hours) does it take to charge a new battery? How long (minutes/hours) to recharge the battery after initial charging? Charger is plugged in, green light is on, is it charging or is it fully charged? Red light?
Can I clean my A coil in the AHU without having to remove the coil?

Frequently Asked Questions

CoilJet

Q: My CoilJet doesn't power on. What could be causing this?
A: There are a few reasons this may be happening. We recommend taking the following steps to identify any potential cause.

Check the battery for correct voltage. Open battery compartment, remove the battery and disconnect battery wires. Check the battery voltage with a volt meter. A fully charged battery should output between 11-14 volts. If it is under 11 volts the battery needs to be recharged. Click here for troubleshooting battery specific problems.

Check for blown fuse.. Your CoilJet includes a 15amp fuse located in the base of the unit. Under special conditions, this fuse may blow to protect other components. To locate the fuse remove the six screws on the bottom cover of the unit. Locate the yellow fuse holder and check its condition. Replacement of the fuse is with a standard in-line 15 amp fuse.

Check for loose or damaged wiring. In extreme cases wiring can become loose or damaged, either through shock/vibration or accidental chemical spills. With the base cover still off, check for this condition. If you find loose or damaged wiring, please contact us.

Check the battery charger. The battery charger should be producing between 12-14 volts. Plug the battery into a working wall socket. DO NOT PLUG INTO COILJET UNIT. If it is flashing red, the unit needs to be replaced. If the light is green, use a voltmeter to check the output. If it is not measuring between 12-14 volts, it needs to be replaced. Please contact us for replacement.

Q: How heavy is the CoilJet?
A: The CoilJet weighs 15lbs dry, and approximately 40 lbs when fully loaded with water and cleaning solution. As always, caution should be used when lifting heavy objects.

Q: How long will the battery last?
A: Two part answer. A full charge will last for approximately 20 tank loads of coil cleaning, so typically all day depending on your usage. As for the life of the battery, it is designed to last for at least 300 full charging cycles – that is from completely charged to fully drained. Typically a battery is only partially drained before re-charging and therefore will last many more cycles than that..

Q: Do I need to do anything special to care for the battery?
A: It is important to not store the battery for a long time (months) with no charge. For instance if you plan on storing the CoilJet during the off-season, put it away with a full charge. In addition, the battery comes with a "smart" charger which will prevent the battery from over charging. Therefore, SpeedClean recommends that you leave the charger plugged in to the battery when storing for long periods of time.

Q: Will the CoilJet damage my coils?
A: No! The CoilJet is the ONLY washer specifically designed for thoroughly cleaning the delicate fins without damaging them. It does this by forming a unique spray pattern that never surpasses 100 PSI. Depending on the gauge of the fins and the angle of the spray, coil damage can begin occurring at only 125 PSI!

Q: Why is the CoilJet superior to a pressure washer?
A: The only way a pressure washer can be used to clean coils without damaging the delicate fins is to hold the spray wand well away from the coils. Spraying a 1000 PSI washer approximately 4 - 5 feet away from the coil surface to avoid damage means only about 100 – 150 PSI. Why bother lugging up a heavy pressure washer and running long lengths of water hose and extension cords for that?

Q: Why is the CoilJet superior to a pump sprayer?
A: A pump sprayer is designed to simply apply a chemical. They typically produce only about 30 PSI at about .2 GPM therefore it is not capable of flushing out coils or washing away debris like the CoilJet can. If you have to use harsh chemicals and/or acids to clean coils, the pump sprayer is the right choice.

Q: Why is the CoilJet designed for low flow?
A: We know that many of your coil cleaning applications are directly above drip pans that rely on a ¾ " drain line to route away condensation. The .5 GPM of the CoilJet will easily flow down that drain without overflowing the drain pan and causing water damage. A pressure washer can’t do that!

Q: How many condenser coils can it clean on one tank?
A: This largely depends on the size of the units and how fouled they are. However it is typical for the CoilJet to be capable of cleaning 2 or 3 five ton units that require routine cleaning.

Q: Can I use harsh chemicals or acids in the CoilJet?
A: Not without eventually causing damage to the pump. If a chemical of this type is used in the CoilJet it is important flush the unit out with fresh water immediately afterwards. We recommend using SpeedyFoam from SpeedClean, an acid free coil cleaner delivers superior cleaning power without harmful effects to you and less harmful to the environment.

Q: What is the best type of coil cleaner to use with the CoilJet?
A: SpeedyFoam with ultra-foaming action from SpeedClean is recommended. It has superior foaming ability and is proven to be safe and effective. As an alternative, any non-caustic or non-corrosive foaming coil cleaner can be used. If you happen to use a caustic coil cleaner, make sure to flush the system at the end of use to reduce damage to the unit caused by caustic cleaners.

Q: How will the CoilJet save HVAC technicians money?
A: Time! There are tremendous labor savings resulting from not having to hook up to water supplies, drag hose, run extension cords, remove condenser exhaust grates, remove evaporator housings, etc. It is entirely possible to clean 3 medium size condensers located on a rooftop in only 10 minutes!

Q: How will the CoilJet save my customers money?
A: Increased energy efficiency! Over time grass, dirt, biological growth and other debris build up on the face of the coils. This accumulation reduces the surface area of the coils, dropping air flow and causing the compressor to work harder. The less heat exchanged to the outside air causes greater temperatures inside the condensing unit and the refrigerant which results in reduced performance.

Q: Can I clean any types of coils with the CoilJet?
A: It is effective on many different types of coils including condenser and evaporator coils found in heat pumps, air conditioners, fan coils, PTAC’s, etc. Generally speaking it is intended for cleaning residential and light commercial size units.

Q: What is the most important accessory to get with my CoilJet?
A: The unit comes complete with everything you need to get started. However the most helpful accessory not included is the 90 degree spray wand. We call it the "Wonder Wand" because it fits into amazingly tight spots with its narrow ¼" diameter. Various lengths of this wand are available from 2’ up to 5’ depending on the user’s preference. We recommend the 3’ Wonder Wand because it is able to reach all the way down most condensers.

Q: Are there other accessories available?
A: There are many including spare batteries and chargers, various nozzles, wands, and foaming cleaners.

Q: Can I use the CoilJet while the charger cord is plugged in?
A: Yes you can, however the charger cannot keep up with non-stop operation so the battery will eventually wear down. Therefore plugging in the charger this way will only serve to lengthen operation time, not provide unlimited usage.

Q: What CoilJet battery should I use for my CoilJet model?
A: For the CJ-95 use the CJ-9689 (both charges are on one side of the battery)
For the CJ-75 use the 8936 (charges are on opposite sides)

Q: CoilJet Warranty Information
A: This unit has been carefully tested and inspected at the factory and is warranted to be free from defects in material or workmanship. The company will, under this warranty, repair or replace any parts which prove, upon examination, to be defective. This warranty is F.O.B. factory and is valid for one year from date of purchase by original purchaser.

This warranty does not include unusual wear, abuse, damage resulting from accident, or unreasonable use of the portable HVAC coil cleaner, including using unapproved chemicals or detergents. Any repair made by others automatically voids this warranty. For repairs or warranty information DO NOT contact the place of purchase. Contact SpeedClean directly.

Q: Where can I find the CoilJet user manual?
A: You can download the user manual here. CoilJet User Manual (.pdf)

Q: Looking for more information?
A:

Q: My battery doesn't seem to be holding a charge. What could be the reason?
A: There are two primary reasons for battery life issues. 1) The battery is not holding a charge and/or 2) the battery isn't being charged properly.

For the first reason, make sure that the battery remains charged at all times, especially if being stored for extended periods of time. We recommend leaving the battery plugged into the charger. The charger is a specially designed trickle charger and will maintain a proper charge.

The second reason is that the charger is malfunctioning. This can present itself in a few ways which include a flashing red light on the charger or no light. A test of the charger with a voltmeter is the PRIMARY test, regardless of lights. A proper charger should read between 12-14 volts. Anything below that is and indication that the charger is broken. Contact is for a replacement or refer to the warranty section for guidelines on repair or replacement.

Q: Model number CJ 75 How long (minute/hours) does it take to charge a new battery? How long (minutes/hours) to recharge the battery after initial charging? Charger is plugged in, green light is on, is it charging or is it fully charged? Red light?
A: Charging the battery for a CJ-75 or CJ-95 model from an empty charge takes about 3 hours. The charger is a smart, trickle charger and therefore can be left plugged into the battery at all times when not in use. The light on charger has three states.

Red - Battery is charging
Green - Battery is full charged and trickle charging is occuring
Flashing Red - Indicates and issue with the charger

Q: Can I clean my A coil in the AHU without having to remove the coil?
A: Depending on the design of the unit, most can be cleaned without having to remove the A coil. The CoilJet has .5 gallons per minute flow rate, so any water/chemical canl easily be handled by the condensate pan and line. The trick however will be to make sure no water/chemical drips into the air handler unit. We've seen this accomplished by angling a tarp or a piece of plastic under the coils to capture any liquid that may come througg the coil and direct it back to the condensate pan.