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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a raypak 266A and am getting alternating no pilot sensed

Customer Question

I have a raypak 266A and am getting alternating no pilot sensed and ignition failure messages. How do I correct or fix this
I started the heater a couple of days ago and it worked fine
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.
Welcome! We keep going until you have all of the information you need.[b/]. Extensive training & coaching also available.
Tell me if this looks like the manual for your heater or not please:
http://www.ohiopools.com/wp-content/uploads/2011/12/raypak-pool-heater-models-206-266-336-406.pdf
see page 49, the problem is most likely an ignition spark gap or flame sensing error. In either case it is likely you can resolve the problem by removing the pilot assembly and cleaning those components with *plumbers sand cloth.
That would be step one.
There were many versions of this boiler made, tell me please of your pilot assembly looks like the one shown on page 46 or not.
We can go from there.
.

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