Mine need be replaced
1) Read following for gas water heater
http://waterheatertimer.org/pdf/Which-is-best-gas-water-heater.pdf
2) For electric, all brands are same. Buy from local box store.
If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7
SOURCE: Rheem 40 gal power vent gas water heater shows code 42
you plugged it in and the fan started or you unplugged it and the fan started,,the fan will come on first before the unit will inginte to take out the excess gas, if it didn't lite then the ignitor might not be working there are 2 swithces on the unit one on the fan and one by the gas valve make sure they are both on and make sure the gas it also turned on.
SOURCE: I painted the floor & my hot water heater (Reehm
The water heater is locked out. The following process should reset it.
1. Reapply power to the water heater and wait for 3 seconds for the system self-diagnostic check.
2. Within the first 30 seconds, the temperature dial must be rotated back and forth crossing the 120
degree mark at least six (6) times. This will reset the control and display a normal flash code
(slow blinking).
SOURCE: Atwwod 10 gal gas/elec water heater won't work on elec.
THE LIGHTED SWITCH SHOULD BE THE 12V ENERGY SOURCE TO ACTIVATE THE LP SIDE OF THE HEATER. THERE SHOULDN'T BE A LIGHTED SWITCH FOR THE 110 SIDE. THERE SHOULD BE A SWITCH OR A COMBINATION OF SWITCHES. ONE ON THE WALL LIKE A LIGHT SWITCH AND ONE MOUNTED BEHIND THE HEATER.
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