2-37. WATER HEATER ELECTRIC CONTROL ASSEMBLY (CONT)
Open control box cover and wipe flat surfaces with a dry cloth.
Compressed air used for cleaning purposes will not exceed 30 psi (207
kPa). Use only with effective chip-guarding and personal-protective
equipment (goggles, shield, gloves, etc.).
Use compressed air and remove dust and contaminants from inside box.
Repair by replacing ignition transformer.
a. Remove ignition transformer as follows:
(1) Turn off load limit switch (1) then turn off water heater breaker switch at main power