Girard Products GSWH-2 Technical Manual page 29


Smell for gas coming out of the exhaust.
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If the weather is cold, do they have enough propane in the tank?

Is the regulator on the tank working?

Replace gas valve.
Water heater comes on and immediately gives an E-5 code (motor failure).

Confirm that motor is not jammed by physically turning the blower under blower housing.

Check the wire CN1 wire connection at the control board.

Replace motor or water heater.
Water heater blower motor does not come. (No fault code - water flow icon is on).

Confirm that motor is not jammed by physically turning the blower under blower housing.

Check the wire CN1 wire connection at the control board.

Replace the control board.
Water heater comes on and then give E-8 code (air pressure switch).

Confirm that nothing is blocking the exhaust vent.

Confirm that the plastic tube is connected to the blower and pressure switch.

Check the lock nut at the bottom of the blower, where the plastic tube attaches. If it is loose, tighten.

Look through the exhaust and confirm that the petit tube is facing away from the blower wheel. (works with suction)

Confirm wires are attached properly.

Replace pressure switch.
Water heater comes on and then goes to an E-3 code. (ECO tripped).

Confirm that the customer has enough water pressure.

Have customer set thermostat to 115 degrees or lower.

Jump ECO to confirm that the ECO is not defective. If the W/H works properly then replace ECO.

If customer is in very hot conditions, he may have to replace the current ECO with a higher degree one.
Water heater burner comes on and then shuts off/ on and off

Confirm gas line connection is not kinked.

Confirm tank regulator is working properly.

Confirm that electrode wires are properly connected.

Confirm that electrodes are installed correctly, and not loose.

Listen for SLOW sparking at the electrodes, if so, replace electrodes.

Replace board.
Customer cannot control the temperature from set point, get too hot and then maybe too cold.

Purge water lines.

Water pressure too low. Some campgrounds have the water pressure very low. Try putting water in the fresh water tank
and running off the pump.

Set temperature lower.

Possible partial by-pass opened.

Possible, outside shower faucets turned on and just the shower button closed. Same for inside shower.

Possible, outlet temperature probe, defective. Have not confirmed this.

Replace water heater.
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