My heater has been working fine all year although I haven't had to use it a lot with the heat. I tried to turn it on and a Flame without CFH message came up immediately. No sounds, smell of gas, nothing. I'm wondering if it's the control board. The heater is about 4 years old. Anything I can check or ideas on figuring out the problem?
Raypak 206 Flame without CFH
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I would think that it's probably the control board.
The error means that the board is receiving a microamp signal from the flame sensor without a Call For Heat.
In other words it's sensing a flame when it has not tried to ignite.
The microamp signal should only be generated by a flame.
Try turning off power for a few minutes and then back on to see if the error goes away.
There's a test point on the back of the board where you can check the microamp signal.
There are a few pictures at the below web page . One shows the back of the board where it says "Flame Current " 1V = 1uA.
If you have a good multimeter that can test for a microamp dc current or a dc voltage, you can check the flame current. You should get 0 microamps or 0 volts dc when there is no flame.
If you get zero amps dc and zero volts dc and the error persists, the board is probably bad.
If you get a dc current or dc voltage, then you might have a stray current generating a false signal.
Don't use a cheap meter to test. Use a good "True RMS" meter.
www.inyopools.com
The error means that the board is receiving a microamp signal from the flame sensor without a Call For Heat.
In other words it's sensing a flame when it has not tried to ignite.
The microamp signal should only be generated by a flame.
Try turning off power for a few minutes and then back on to see if the error goes away.
There's a test point on the back of the board where you can check the microamp signal.
There are a few pictures at the below web page . One shows the back of the board where it says "Flame Current " 1V = 1uA.
If you have a good multimeter that can test for a microamp dc current or a dc voltage, you can check the flame current. You should get 0 microamps or 0 volts dc when there is no flame.
If you get zero amps dc and zero volts dc and the error persists, the board is probably bad.
If you get a dc current or dc voltage, then you might have a stray current generating a false signal.
Don't use a cheap meter to test. Use a good "True RMS" meter.
Raypak PC Board Control Replacement Kit for Digital Gas Heater - 100-10000345 - INYOPools.com
PCB Control Kit - 013464F, Raypak 185B-405B / 206A-408 100-10000345
www.inyopools.com
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Thanks for the advice! I failed to update you earlier but I did as you suggested and there was no voltage. Then I turned the heater on to a mode where there should have been a CFH and I continued to get the error message. As soon as I checked the voltage in that mode the heater sparked and starting working. We'll see how long it works.
Ok, I suspect that the board is failing. The microamp sensor is probably reading a signal where there is none.
Maybe there's some sort of static charge creating a tiny signal? If yes, touching the test points might have drained off the charge.
Hopefully, it will continue to work.
Maybe there's some sort of static charge creating a tiny signal? If yes, touching the test points might have drained off the charge.
Hopefully, it will continue to work.