Raypak 206A - sensor open

[JasonParker]

Hey TFP friends,

I powered on my Raypak heater after having my pool replastered. The LCD panel immediately is showing "sensor open". Before draining the pool, I removed both drain plugs, turned off the breaker, turned off the gas, and covered the heater. We had snow here in Colorado over Labor Day.

Can I remove and clean the sensor to try to get it to function as expected? Or does it need to be replaced?

Thanks,
Jason

 

[ajw22]

Page 29 in http://cdn.globalimageserver.com/FetchDocument.aspx?ID=c404f1c5-ac50-4209-9457-56246d010b20 shows ...

Sensor Open - Thermistor sensor failed open. Below -20°F (-29°C).

Nothing to clean on it. Check the wire connections and probably replace it. See page 49 Part 6C - P/N 009577F

It is a 10K thermistor that you can test with a multimeter. See Temperature Sensors - Further Reading