Troubleshooting Guide - Giant PV1 Owner's Manual

TROUBLESHOOTING GUIDE

Disconnect the electrical power before servicing the water heater. Service should only be performed by a
qualified service technician. Failure to follow these instructions can result in personal injury or death.
CONDITION (code#) CAUSE
1
An open earth ground circuit to the igni-
tion.
2
A wiring error or a high resistance to earth
ground.
3
The pressure switch remained closed
longer than 5 seconds after the call for
heat began.
4
The pressure switch remained open
longer than 5 seconds after the power
venter was energized.
(see note at the bottom of the page)
5
The self diagnostic test has detected an
error in the hot surface ignitor circuit..
6
The maximum number of ignition retries
or recycles has been reached and the
system is in lockout .
7
The gas valve driver circuit.
8
The internal microcomputer.
9
The internal circuit..
10
Flame signal sensed out of proper
sequence.
11
The high temperature thermal cut-off is
open.
12
One of the temperature adjust buttons is
stuck closed.
13
The water temperature sensor is either
open or short-circuited.
14
The self-diagnostic test found a problem
with the flammable vapour sensor.
15
The control detected the presence of
flammable vapours near the appliance
and entered lockout.
Note: Since the high limit switch on the blower is in series with the pressure switch, the problem could be that the high limit switch tripped.
WARNING
DANGER
REMEDY
1) Check that the earth ground conductor is properly connected at the fuse box or breaker panel
AVERTISSEMENT
and the water heater.
2) Check that the grounding conductors on the water heater are properly connected and secure.
1) Check for proper connection of the line neutral and line hot wires.
2) Check that the water heater is securely connected to earth ground.
1) The pressure switch wiring is incorrect.
2) The pressure switch is defective and must be replaced.
1) The pressure switch wiring is incorrect.
2) The pressure switch tubing is not connected correctly.
3) There are obstructions or restrictions in the water heater air intake or exhaust flue.
1) Check the wiring is correct and secure.
2) Disconnect the ignitor connector and measure the ignitor resistance with
an accurate ohmmeter between pins 1 and 2. Resistance should be
between 11.5 and 18.8 ohms. If the reading is incorrect, replace the hot surface ignitor.
3) If the above checks are good, replace the gas control valve.
1) Check if the gas supply is off or too low to operate.
2) Check the flame sensor rod to see that it is located properly and free from contamination.
Reposition the flame sensor rod or lightly clean it with an abrasive cloth.
3) The hot surface ignitor may not be positioned correctly. Reposition as necessary.
4) Check that the hot surface ignitor and flame sensor rod are wired correctly and in good work-
ing condition.
5) Low voltage to the water heater. Check and repair.
1) Turn off the power to the water heater for 10 seconds and then back on.
2) If the above step did not clear the error, replace the gas control valve.
1) Turn off the power to the water heater for 10 seconds and then back on.
2) If the above step did not clear the error, replace the gas control valve.
1) Turn off the power to the water heater for 10 seconds and then back on
2) If the above step did not clear the error, replace the gas control valve.
1) Replace the gas control valve..
1) Replace the gas control valve..
1) Make sure that there are no objects leaning against the front of the control.
2) Lightly press and release each of the buttons once.
3) If the above actions do not clear the error, the control will continue to regulate the water
temperature at the last setting, but you will not be able to change settings unless you replace
the gas control valve.
1) Check that all of the wiring is correct and that there are no open or shorted circuits.
2) If no wiring problems are found, the gas control valve must be replaced.
1) Check that all wiring is correct and that there are no open or shorted circuits.
2) If no wiring problems are found, the flammable vapour sensor must be replaced.
1) Identify the source of the flammable vapours and remove it from the area surrounding the
water heater
2) Contact a qualified service technician or the gas supplier to have the water heater inspected
immediately.
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