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Raypack heater says CFH - Raypak Free Hydraulic Lift Gate Delivery - No L...

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Calling for heat

Posted on May 27, 2016


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: I have a Raypack pool

Have you tried using a fine emory cloth to clean the ignition wire terminal? Sometimes oxidation builds up on them, and they play heck making contact. CFH is call for heat, and SPK is spark. Clean or replace the ignition wire good and see what happens. The clicking sound is probably the electronic ignition trying to spark.
Looked on the net, but couldn't find these codes, and noone reported any problems. It could be a temperature sensor- that is the cheapest thing to try first. If that doesn't fix it, it could be a faulty ignition unit.
Here is a good web blog of these systems, and may assist you:
Good luck, thanks for using FixYa, and hope this helps.
Good luck, hope this helps, and thanks for using FixYa.

Posted on Sep 05, 2010

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Why do I get CFH but then no SPK?

CFH = Call For Heat
SPK = Ignitor is Sparking - attempting to ignite raw fuel

In a lot of cases, Pressure Switch opens up, CFH , is cancelled and therefor no ignition sequence.
try cleaning filter really good. If cartridge, may be time for an overnight soak.

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check gas pressure sounds like too small meter especially if furnace or dryer is running call gas company give them added value of all gas operated appliances

May 24, 2014 | Raypak RP2100 DIGITAL POOL HEATER R265

1 Answer

What is CFH

CFH stands for "Call For Heat"
CFH means "Call for heat" and SPK means "Spark". They are status codes, not fault codes.
It basically means that the heater is turning on the heat mode and spark should appear shortly after the CFH code appears. At this point the heater should be igniting and the heater heating up.
If you are having a fault issue with the heater, please let us know if there is anything else that we can do for you!

Dec 16, 2010 | Raypak Free Hydraulic Lift Gate Delivery -...

1 Answer

What does CFH mean on your pool heater and how do you fix it?

CFH is call for heat and the flame is about to come up. The banging you hear is the water inside the heater overheating to a boil. What you have is a water flow problem. If you have a valve bridging the water into the heater and the water going out be sure this valve is 80-90% closed so it forces water through the heater. If not you may have a problem inside the water manifold on the side of the heater. Their is a water by pass disc inside the header if stuck open will cause the same problem. Also check your baskets and filter to be sure they are clean.

May 07, 2010 | Raypak Free Hydraulic Lift Gate Delivery -...

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