Rheem RTGH Series User Manual

78
ERROR CODE 88 CLEARING
IMPORTANT
It is highly recommended to perform water heater maintenance activities such as flushing the heat exchanger and/or replacing
the water treatment filter (if applicable) before clearing this error code.
After these maintenance activities are completed, follow the steps below to clear error code "88".
Turn on the remote control.
Turn off the gas and water to the water heater by
closing the shut-off valves.
Press the DOWN adjustment button repeatedly until
the lowest setting temperature shows in the LED
display.
Press and hold the DOWN and UP adjustment
button for 5 to 10 seconds.
Turn on the gas and water to the water heater by
opening the shut off valves.
If error code "88" is still shown, repeat steps 1
through 5 above.
Maintenance Notice
1
2
3
4
5
CARING FOR YOUR WATER HEATER
Start/Adjust

Rheem RTGH Series Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Ignition System	Electronic
Energy Factor	0.82 - 0.94
Vent Type	Direct Vent
Installation Location	Indoor or Outdoor
Dimensions	Varies by model
Weight	Varies by model
Warranty	12 years heat exchanger, 5 years parts