Herz commotherm 30 SW, Operating Instructions Manual

Page: 70 / 80

8 Fault reports and their corrections
70
No. Fault report
018 SENSOR COLLECTOR
Failure solar collector
temperature sensor
019
SENSOR COLLECTOR
BACK FLOW Failure
temperature sensor
020
SENSOR SOLAR
TANK 1
Failure temperature sensor
solar
021
SENSOR SOLAR
TANK 2
Failure temperature sensor
solar
022
SENSOR SOLAR RES.
Failure solar reserve temperature
sensor
023
ADDITIONAL BOILER
SENSOR
Failure additional
temperature sensor; cable
short
024
HYDR. COMP.
SENSOR
Failure hydraulic compensator
temperature sensor; cable
short
027
SOLAR
OVERHEATING Collector temperature exceeds
lhe limit
028
SOLAR MAX.
LOADING
The solar storage tank is cooled
down over the solar
to high temperatures.
030
ANTIFREEZE BUFFER
Too low temperature in the
 Antifreeze
031
ANTIFREEZE HOT
WATER TANK
Too low temperature in the hot
water tank
activated
032
ANTIFREEZE
HEATING CIRCUIT
Too low temperature in the
heating
circuit
function is activated
033 ANTIFREEZE SOLAR
Too low temperature in the solar
tank
activated
034
ANTIFREEZE HYDR.
COMPENSATOR
Too low temperature in the
hydraulic
freeze
036 ANTIFR. ADD. BOILER
Additional boiler temperature
under 7 °C
Fault reports and their corrections
Cause of fault Fault
Failure solar collector
temperature sensor
 Check sensor, replace asnecessary
 Check plug, replace asnecessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure solar collector back flow
temperature sensor
 Check sensor, replace asnecessary
 Check plug, replace asnecessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure temperature sensor
solar tank (hot water or buffer)
 Check sensor, replace as necessary
 Check plug, replace as necessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure temperature sensor
solar tank (hot water or buffer)
 Check sensor, replace as necessary
 Check plug, replace as necessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure solar reserve temperature
sensor

Check sensor, replace asnecessary
 Check plug, replace asnecessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure additional boiler
temperature sensor; cable break;
short-circuit; failure connection

Check sensor, replace asnecessary
 Check plug, replace asnecessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Failure hydraulic compensator
temperature sensor; cable break;
short-circuit; failure connection
 Check sensor, replace
 Check plug, replace asnecessary
 Check wiring incl. connections,
replace asnecessary

✆
- contracting party
Collector temperature exceeds
lhe limit temperature  Check solar pump
 Check solar tank level
The solar storage tank is cooled
down over the solar system due
to high temperatures.
 Display only, no action required.
Too low temperature in the buffer
Antifreeze function is activated
 Display only, no action required.
Too low temperature in the hot
water tank
 Antifreeze function is
activated
 Display only, no action required.
Too low temperature in the
heating
circuit  Antifreeze
function is activated
 Display only, no action required.
Too low temperature in the solar
tank

Antifreeze function is
activated

Display only, no action required.
Too low temperature in the
hydraulic compensator
 Anti-
freeze function is activated
 Display only, no action required.
Additional boiler temperature
under 7 °C
 Display only, no action required.
Fault correction
Check sensor, replace asnecessary
Check plug, replace asnecessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace asnecessary
Check plug, replace asnecessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace as necessary
Check plug, replace as necessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace as necessary
Check plug, replace as necessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace asnecessary
replace asnecessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace asnecessary
Check plug, replace asnecessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check sensor, replace asnecessary
Check plug, replace asnecessary
Check wiring incl. connections,
replace asnecessary
contracting party
Check solar pump
Check solar tank level
Display only, no action required.
Display only, no action required.
Display only, no action required.
only, no action required.
Display only, no action required.
Display only, no action required.
Display only, no action required.