Diagnostics - Error Codes - FLOWMAX Technologies FLOWMAX-90 User Manual

D.H.W temperature control
■
The domestic hot water temperature is regulated by
knob 3 (see "Control panel").
Rotating the knob anticlockwise reduces the
•
temperature.
Rotating the knob
•
temperature.
The range of temperature settings for the domestic
•
hot water runs from a minimum of 35° C to a
maximum of 60° C.
■ Topping-up the system with water
The water pressure in the central heating circuit must
be checked during the entire period of operation of the
water heater. In this respect, the reading on the
pressure gauge M (fig. 2), located on the lower part of the water heater, must not be less than 1 bar.
If there is insufficient water in the water heater, the code H2O will flash on the display (see fig 1).
To bring the system back up to pressure, open the external filling tap R (fig.2) and use the pressure gauge M (fig. 2)
to check that the system pressure reaches 1 bar and that the code H2O lights up.
When the operation is complete, close the fill tap.
Diagnostics – Error codes:
This paragraph contains a list of error codes that the water heater may generate on the display 8 (see "Control
panel") together with the relative indications and the operations that the user can carry out to reset the water heater.
If the problem re-occurs after the following actions have been taken, call an authorized Service
Centre.
_E01_ Ionization block
Code E01 lit continuously on the display.
Check that the gas valve on the water heater and gas meter are open and that there is gas in the mains supply
(or in the tank).
Switch off then switch on the appliance using switch 1 (see "Control panel") on the control panel.
When the error code on the display disappears, the water heater will restart.
If the problem persists, call the Service Centre.
_E02_ Safety Thermostat tripped
Code E02 lit continuously on the display. Call the Service Centre.
_E03_ Exhaust Vent Thermofuse tripped
Code E03 lit continuously on the display. Call the Service Centre.
_h2o_ Water Pressure Switch tripped
Code H2O lit continuously on the display.
Check the water pressure in the central heating circuit. The reading on the pressure gauge M (see fig. 2),
located on the lower part of the water heater, must not be less than 1 bar.
If the pressure is less than 1 bar, top-up the system as described in paragraph "Filling the system".
The water heater will restart automatically.
If the problem persists, call the Service Centre.
USER INSTRUCTIONS
clockwise increases the
Fig. 2
8
M
R