HTP Versa Hydro PHE130-119, Установка Запуск Техническое обслуживание Запасные части

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Fault Code LOU
This display indicates that the 24 volt power supply on the control is damaged or overloaded. This code
will reset automatically if it is the result of an overload and that overload condition is removed. The
second line indicates the status of the pump. Note: While 24 volt power is low, the pump output will be on.
Remedy:
1. Check line voltage. Must be between 100-128 volts.
2. Disconnect TT wiring. If error clears, there is an issue in the thermostat wiring. Review external wiring.
3. If available, connect PC and use HTP service software to check the 24v supply display in the lower left
corner of the screen. The number displayed here must be greater than 128 and should be at least 250.
Use this as a troubleshooting guide as you follow the steps below.
4. Remove 12 pin Molex connector from the field wiring board. If the message clears, then the problem is
with external low voltage wiring. Examine the external low voltage sensor wiring for shorts to ground and
repair as necessary. If message is still present, disconnect the UL 353 low water cutoff to see if message
clears. Replace faulty part. Check low voltage wire harness in boiler for shorts to ground.
5. Remove the 20 pin Molex from the ECS board. If the message clears, examine the wiring to the
heating module and fan for shorts or grounds and repair as necessary.
6. If message only occurs when the burner tries to light, check gas valve for excessive current draw.
7. If message is present with the low voltage harness disconnected from the 926 control board, replace
the 926 control board.
Fault Code F00
This display indicates that the water in the tank has overheated. This is a serious safety issue, as indicat-
ed by the red fault light and the flashing the word LOCKOUT on the display. The unit will not restart until it
cools sufficiently and a technician repairs the cause of overheating and resets the unit. During this lockout
fault, the pump will be on as indicated on the second line of the display in an effort to cool down the
boiler.
Remedy:
1. Check central heating pump operation.
2. If the circulator pump is running, be sure that there is water in the system and that the water is moving
through the system as intended. Be sure that all correct ball valves and or zone valves are open or closed
as intended.
3. Observe the temperature/pressure gauge. If the water is not hot and this message is displayed, check
the wiring to the water eco sensor and repair if necessary. If the wiring is correct, the water is not
excessively hot and this code is still present, replace the eco sensor.