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PP16AMY OWNER INSTALLATION MANUAL
5.0 HEAT PUMP MALFUNCTION
WARNING: Isolate heat pump electrically before entering heat pump or
removing panels.
The user check list should be carried out before initiating a service call.
Do not attempt to interfere with any internal control settings as these have
been factory calibrated and sealed.
Any sign of abnormal operation such as water dripping should be reported
immediately to the installer.
If in doubt or if advice is required contact the Dantherm Group UK Service
Department.
Telephone +44(0)1621 856611 (option 4)
5.1 USER CHECK LIST
The thermostat displays the following lamps during normal operation.
SYMBOL
DESCRIPTION
DEFROST
WATER HEATING
AUX
CIRCUATION PUMP
OFF
OFF LAMP
If an error occurs any of
SYMBOL
DESCRIPTION
ALARM - FAULT
!
THERMAL OVERLOAD
to
(PP16)
PRESSURE SWITCH
PrA
ALARM
SYMBOL
DESCRIPTION
E1-E1/
PROBE ERROR
E2-E2
EPr
PROBE ERROR
If the thermostat appears to be dead or reading incorrectly, check that the
connectors in the back of the digital thermostat are not loose. See section 2.4
for how to correct this.
18
LAMP ON
HEAT PUMP IN
DEFROST
DEMAND FOR
WATER HEATING
FAN
FAN RUNNING
PUMP RUNNING
HEAT PUMP OFF
e following lamps or messages will be displayed.
LAMP ON
ILLUMINATES
WITH "to"
INTERNAL
OVERLOAD TRIP
HP/LP FAULT
LAMP ON
PROBE INTERRUPTED, SHORT
CIRUIT OR OUTSIDE RANGE
INTERNAL EEPROM MEMORY
ERROR
LAMP FLASHING
-
WATER HEATING DEMAND
COMPRESSOR DELAY TIMER NOT
TIMED OUT
FAN NOT RUNNING
COMPRESSOR DELAY TIMER NOT TIMED
OUT
-
-
LAMP FLASHING
-
-
-
CHECK CONNECTION BETWEEN PROBES AND
THERMOSTAT
SWITCH OFF HEAT PUMP AT MAINS SUPPLY FOR FIVE
MINUTES THEN SWITCH BACK ON. IF FAULT PERSISTS
LAMP OFF
-
NO DEMAND FOR WATER HEATING/
DEMAND SATISFIED
FAN NOT RUNNING
PUMP NOT RUNNING
-
ACTION
-
CONTACT COMPETENT ELECTRICIAN
TO RESET THERMAL OVERLOAD.
IF PROBLEM PERSISTS CHECK SITE
VOLTAGE
CONSULT INSTALLER
ACTION
CONTACT INSTALLER
SD721950 ISSUE 3
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