What to do if the red LED “Over temperature” is lighted and the JOSAM JH400 is turned off?
If the red LED “Over temperature” is lit and the heater shuts off, it means the electronics are too hot. Allow the JOSAM Heater to cool down or change the water. Once cooled and the LED is off, it's ready for use again.
How to troubleshoot no power to the JOSAM JH400 Heater?
If there's no power to your JOSAM Heater, first, ensure it's properly plugged into the wall outlet and that the outlet has power. Also, check if the mains protection has tripped. Make sure there are no loose connections in the electrical plug and the wall outlet.
What to do if the red LED “Water fol w” is lighted and the JOSAM JH400 Heater is turned off?
If the red LED “Water fol w” is lit and the heater shuts off, it indicates incorrect cooling water flow. Check that the water level is adequate and refill if low. Also, inspect the pump's coarse filter for blockages and clean it if necessary. Finally, check the water hoses for blockages and try cleaning them with compressed air.
What to do if main power is sufficient, but the JOSAM JH400 doesn’t operate?
If the main power supply is working, but the JOSAM Heater isn’t operating, the ground breaker operator may have tripped. Try switching on the ground breaker operator.
What does it mean if the 2 red LEDs flash simultaneously on JOSAM JH400 Heater?
If the 2 red LEDs flash simultaneously, it indicates an unexpected error. Try releasing and pressing the trigger again. If the error persists, switch the heater off and on again using the main breaker. If the problem still remains contact JOSAM service personnel.
Why is there water leakage between the inductor handle and the inductor head on my JOSAM JH400?
Water leakage between the inductor handle and the inductor head is typically due to a damaged gasket. Try changing or tightening it.
The following types of safety signs are used on the equipment and in JOSAM AB's instruction manuals.
Undamaged safety signs shall always be affixed at the indicated places. If any signs are damaged or missing, the user is responsible for their immediate replacement.
The safety signs are placed at the rear of JH400 as follows.
Describes the safety features of the JH400, including cooling systems and protective devices.
Explains how to connect the JH400 to the electrical mains supply, including fuse requirements.
Describes the main control panel buttons like On/Off, Increase/Decrease power, and power indicators.
Explains the meaning of red LEDs indicating issues like over temperature, water flow, or general electronic alarm.
Provides step-by-step instructions on how to turn on the heater and set the power level for different materials.
Daily checks include verifying water level, checking for leaks, and inspecting the inductor handle and cable.
Step-by-step guide for safely replacing a worn inductor head with a new spare part.
A table listing common faults, their possible causes, and recommended actions for resolving them.
To Next Page
General