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User Manual
PKK-50
37
8.3 Problem diagnostics
Alarm door opened
➔
check the end switch
➔
check the locking mechanism
Water drip from chamber
➔
check the chamber seal
Low temperature stability & uniformity
➔
check the door seal
➔
check the operation of the chamber fan
➔
check the cooling ribs inside & outside
➔
check the temperature sensor
Increased noise
➔
check the Peltier block fans (outside and inside)
Damaged seal
➔
replace it with the original
Damaged access port
➔
replace with new access port
Controller malfunction
➔
call service