Problem
Possible Cause
Solut ion
No display
-No power supply
-check power supply
t he inf lat ion process does not
commence, even when t he pressure
is set and t he hose is connect ed t o
t he t yre.
-t he t yre is delf at ed below 3psi,
20kPa or 0,2 bar.
-The hose connect or is f ault y.
-Press t he 'Flat Tyre
Only' Swit ch
-Replace t he hose
Connect or
The display will not move or is st uck
on a part icular value
-t he f aceplat e/swit ch is
damaged
-Replace t he
f aceplat e/swit ch
t he unit def lat es very slowly
-The silencer plug on t he valve
block is blocked
-Remove and clean
t he silencer plug.
The unit no longer beeps
-t he beeper is damaged
-Replace t he beeper
t he inf lat ion process commences but
does not complet e.
-Low or nil spply pressure
-check t he air
compressor supply
pressure
ER1
-Unst able pressure, f ault y hose
connect or
-replace t he hose
Connect or
ER2
-Unst able pressure, f ault y hose
connect or
-Incorrect supply pressure
Inf lat e & Def lat e valve
-connect ions are reversed
-replace t he hose
Connect or
-Check t he air
compressor supply
pressure.
-Check t he valve
connect ions on t he
PCB
ER3
-Low or nil supply pressure
-check t he air
compressor supply
pressure
ER4
-Init ial or f inal pressure is t oo
high, exceeding t he maximum
pressure by more t han 20 psi.
140 kPa pr 1,4 bar.
-Disconnect hose
connect or, reset
processor by
swit ching of f t he
power f or an
minimum of 5 sec. If
error message
reappears replace
PCB
ER5
-Low volt age supply
-check power supply,
The message will
clear when t he
correct Volt age is
rest ored.
The f ollowing chart has been prepared t o assist wit h diagnosis of f ault s.
4.0 Troubleshooting
7
+49 (6158) 92980-0
