502
Thermo plus 160/230/300/350 5 Troubleshooting
Error in the water system
Circulating pump does not operate (Aquavent 6000S and
Aquavent 6000SC only).
• Error mode activated
In case of malfunctions the motor is switched off via the
error mode.
Reactivation of the circulating pump motor
For this purpose disconnect the power supply for > 2 min
(Observe 5.2 !).
After the power supply is reconnected the motor
performs a soft start.
The heater operation stops because the connected heat
exchangers (e.g. front box and side wall heater) provide
insufficient heat.
Flow rate too small, because
• Air in the heater, heat exchanger or in system
sections
• Taps/valves (flow controllers) throttled,
contaminated, closed
• Contaminations in the system, e.g. filters or at bottlenecks
• Circulating pump delivery rate insufficient
(air in pump housing)
• Insufficient frost protection
• System resistance too high (especially high in the cold)
• Circulating pump defective
• Adapter wiring harness “Valeo“ for variants > 85°C
defective
Heat exchanger provides not enough heat, because
• Air in the heat exchangers and/or system sections
• Contaminated heat exchanger surfaces (outside)
• Insufficient air entry or air exit
• Fan: Insufficient delivery rate /
incorrect direction of rotation / resistance too high
• Antifreeze content too high
Approximate flow rate determination:
Heat flow [kW] according to type plate
Flow rate in [l/h] = x 860
Temperature difference t in [K] or [°C]
measured on the heater between water inlet and water outlet
Table 501 General error symptoms
Error symptom Possible cause
To Next Page
Loading...
