3
Unit not working
Power point may not be
working
Need the line at customers
place to be checked
Check for any short circuit
of harness/Power
Cut out operated due to dry
heating
Reset Cut out
Heating element might not
be functioning (may be due
to Dry heat or short/Crack/
burst /heavy scaling)
Replace Heating element
4
Leakage of the unit
Rusting of the tank
Check from where the leakage
is (tank, collar, gasket, Heater
plate), Replace or repair based
on the observation
Not enough torque to the
bolts on HP / HE flange
Replace or repair based on the
observation
Leaking from Heating
element brass flange
(Instant water heater)
Replace Heating element
5
No Hot water out
put
Heating element not
working
Reset Cut out
Thermostat low setting
(check if someone
tampered the setting in
Instant water heater)
Cut out trip
Inlet valve closed
Open the inlet valve
6
User gets mild shock
when using Water
heater
Improper earthing at
customers place
Check for proper earthing & if
not then suggest customer to do
it properly
7
Outlet water
blockage
Heavy scaling on Outlet
pipe opening end
descaling the product from
authorised service personel
8
Leaking from MFSV
(Safety valve)
Excess pressure than rated
pressure
Check the pressure when unit
is in ON condition, ensure Inlet
line is ON.
Note: When MFSV is dripping,
it ensures safety of Put from
excess pressure. Put drain pipe
at MFSV with clip
Check NRV position from
inlet pipe
It should be minimum 12 feet
from equipment
Check if PRV is there in high
rise building
9
Water Heater unit
burnt
Short circuit of the harness
/ Power Cord
Replace Harness asm or Power
Cord
Use of Low amp Power
Cord
10 Smell comes out of
water
If Water heater unit is not
used in 15+ days, water
inside smells for some time
Flush out 2 times capacity of
water heater.
Instant Water Heater Manual.indd 6
9/19/2019 6:06:52 PM
