MasterTemp 125 Natural Gas (w/cord)
https://www.poolsuppliescanada.ca/p...low-nox-natural-gas-swimming-pool-heater.html
Error Code: Pentair MASTERTEMP 125 Installation And User Manual (Page 42 of 56) | ManualsLib
Heater Sequence of Op: (1) pressure switch, (2) high limit switch, (3) air flow switch, (4) auto gas shutoff, (5) stack flue sensor
New to pool heaters but fairly knowledgeable pool owner otherwise. Ordered online: natural gas connected by a professional, I did all the plumbing.
Turn on the POOL HEATER or SPA HEATER and as soon as I set a temp above current water temp, it 'clicks' and throws an AFS error (air flow switch) on the control board with 'service heater'.
However, the blower never turns on. My question is, does the blower need to be on for the AFS to close, or does the AFS detect via standing air, and once closed, the blower starts? That seems to be what they manual is saying:
From the manual: "The air flow switch (AFS) senses the pressure drop across the air metering orifice. As soon as there is sufficient air flow, the AFS closes, closing the circuit to the hot surface igniter (HSI), which ignites the fuel mixture. On a call for heat, the blower and HSI are energized. In about 20 seconds, the gas valve opens and ignition occurs. The HSI then switches to a sensing mode and monitors the flame. "
The pentair tech says the blower should still come on.
Is it safe to bypass the AFS switch, and if so should I expect the blower to turn on?
Thanks in advance.
https://www.poolsuppliescanada.ca/p...low-nox-natural-gas-swimming-pool-heater.html
Error Code: Pentair MASTERTEMP 125 Installation And User Manual (Page 42 of 56) | ManualsLib
Heater Sequence of Op: (1) pressure switch, (2) high limit switch, (3) air flow switch, (4) auto gas shutoff, (5) stack flue sensor
New to pool heaters but fairly knowledgeable pool owner otherwise. Ordered online: natural gas connected by a professional, I did all the plumbing.
Turn on the POOL HEATER or SPA HEATER and as soon as I set a temp above current water temp, it 'clicks' and throws an AFS error (air flow switch) on the control board with 'service heater'.
However, the blower never turns on. My question is, does the blower need to be on for the AFS to close, or does the AFS detect via standing air, and once closed, the blower starts? That seems to be what they manual is saying:
From the manual: "The air flow switch (AFS) senses the pressure drop across the air metering orifice. As soon as there is sufficient air flow, the AFS closes, closing the circuit to the hot surface igniter (HSI), which ignites the fuel mixture. On a call for heat, the blower and HSI are energized. In about 20 seconds, the gas valve opens and ignition occurs. The HSI then switches to a sensing mode and monitors the flame. "
The pentair tech says the blower should still come on.
Is it safe to bypass the AFS switch, and if so should I expect the blower to turn on?
Thanks in advance.
