Heyer Modular+ - Symptoms of Fuse Failures

Maintenance and Calibration
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3.4.3 Symptoms of Fuse Failures
The following table shows the reaction to a failed fuse on the power supply board. The fuses F2, F3,
F4, F5 and F6 have been removed from the power supply module and are therefore subject of the
production date.
FUSE Failure during working Failure during start
F1 Display is black; module 1 and 2 do not
work
Display is black; module 1 and 2 do
not boot
F7 alarm „Solenoid Valves faulty“, „Fan
faulty“ and „Ambient Air Intake“; real
time curve shows a zero line
after booting the message „Selected
mode is not Standby“ is shown;
module 2 does not boot; fan does not
work
F8/F9 alarm „AC power lost, using battery“ after the machine has booted alarm
„AC power lost, using battery“ is
shown
F10/F11 During the ventilation there is no failure;
after you have turned the selector
switch to Standby the message „Insert
patient module“ is shown; during using
battery the message disappeared
after the machine has booted the
message„Insert patient module“ is
shown; during using battery the
message disappeared