Weird issue. Pentair 250 NG is tripping open the house 120V feed breaker (GFCI) about 10 seconds AFTER positive ignition and heat being generated. If I keep the manual gas valve closed the heater starts up normally but activates the SERVICE HEATER light AFTER the ignition failure (not unexpected since the unit gas supply is manually isolated with manual valve).
Dave posted a similar experience with power supply breaker tripping open in 2020. Never saw the final resolution but curious if Dave is still on here.
www.troublefreepool.com
Hard to understand how a natural gas pool heater is tripping the feed breaker as described, and only when the gas it available. Perhaps without the gas, the system does not get far enough into the start sequence to develope the short (but again, the breaker trips about 10 secs AFTER the gas is flowing and the heat is being generated).
Any help is greatly appreciated. Thank you in advance.
Dave posted a similar experience with power supply breaker tripping open in 2020. Never saw the final resolution but curious if Dave is still on here.
Pentair Ultra Temp 120 Heater tripping breaker
Hi all, We opened our pool a few weeks ago and started the Pool Heater (Pentair UltraTemp 120, 7 years old). The pool heater ran for about an hour or so, then tripped the main Pool breaker in the basement. We reset the breaker at the panel and the breaker at the Pool Heater location. The unit...
www.troublefreepool.com
Hard to understand how a natural gas pool heater is tripping the feed breaker as described, and only when the gas it available. Perhaps without the gas, the system does not get far enough into the start sequence to develope the short (but again, the breaker trips about 10 secs AFTER the gas is flowing and the heat is being generated).
Any help is greatly appreciated. Thank you in advance.
