09
9 TROUBLE SHOOTING
This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit.
9.1 General guidelines
Before starting the trouble shooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects
such as loose connections or defective wiring.
Before contacting your local dealer read this chapter carefully, it will save you time and money.
CAUTION
When carrying out an inspection on the supply panel or on the switch box of the unit ,always make sure that the Circuit
breaker of the unit is switched off.
When a safety device was activated, stop the unit and find out why the safety device was activated before resetting it. Under
no circumstances safety devices may be bridged or changed to a value other than the factory setting. If the cause of the
problem cannot be found,call your local dealer.
9.2 General symptoms
• Symptom 1:Intermittent water dischange
Table .9-1
POSSIBLE CAUSES CORRECTIVE ACTION
The main water supply is off Check that all shut off valves of the water circuit are completely open.
• Symptom 2: water from hot taps is cold
Table .9-2
POSSIBLE CAUSES CORRECTIVE ACTION
Thermal control failure When discharge has stopped, check thermal controls, if the fault occurs, contact your
local dealer for a replacement.
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