Lochinvar EnergyRite ER402 - Manual (Page 4)

4
Service Manual
Please read before proceeding
When servicing pool heater –
• To avoid electric shock, disconnect electrical supply
before performing maintenance.
• To avoid severe burns, allow the pool heater to cool
before performing maintenance.
Pool heater operation –
• Do not block flow of combustion or ventilation air to
the pool heater.
• Should overheating occur or gas supply fail to shut off,
do not turn off or disconnect electrical supply to
circulator. Instead, shut off the gas supply at a location
external to the appliance.
• Do not use this pool heater if any part has been under
water. The possible damage to a flooded appliance can
be extensive and present numerous safety hazards. Any
appliance that has been under water must be replaced.
Pool heater water –
• Do not use petroleum-based cleaning or sealing
compounds in the pool heater system. Gaskets and
seals in the system may be damaged. This can result in
substantial property damage.
• Do not use “homemade cures” or “pool heater patent
medicines”. Serious damage to the pool heater,
personnel, and/or property may result.