Pentair HAFFMANS GMT, Instruction Manual, Page: 21 / 38

HAFFMANS GMT
GMT Page 21 of 37
8. TROUBLE SHOOTING AND REPAIR
8.1 Trouble shooting
Fault Possible cause Solution Page
The plunger leaks. The O-rings are
damaged. Disassemble the plunger and
clean or replace the damaged O-
rings. 13
The handle has been
set incorrectly. Adjust the handle. 11
The plunger does not
move freely. The plunger and/or the
O-rings are dirty. Disassemble and clean the
plunger or replace the damaged O-
rings. 13
LED flashes. The battery is almost
empty. Replace the battery. 15
LED does not light up
when starting the
measurement. The battery is empty. Replace the battery. 15
The battery has been
fitted incorrectly. Check the position of the battery
(+ve and -ve terminals). 15
There is no electrolysis
after starting the
measurement. The battery is empty. Replace the battery. 15
The electrical unit with
the LED is faulty. Replace the electrical unit. 16
The electrolysis wire is
broken. Contact Haffmans BV, your local
representative or your agent. 19
The pressure gauge
does not give a
reading. The pressure gauge is
faulty. Replace the pressure gauge. 15
The thermometer does
not give a reading. The thermometer is
faulty. Replace the thermometer. 16