Reznor, Guardian GB GR and GS, Installation Manual, EN 2021-08, D301299 Iss D Page No 31
FF
Fault finding.
General
All Air Curtains are fitted with fuse protection
and motor thermal protection.
Other faults in relation to the element,
motor and wiring should be identified using
conventional fault-finding techniques.
In the event that electrical components are
replaced, please ensure that electrical safety
checks in accordance with the regulations in
force in the country of use are undertaken.
For the service engineer, please note that there
is a thermal cut-out incorporated in the air
curtain which needs to be manually reset. The
cut-out is located near to the control panel,
note 2m has two, with the second located
near the centre of the fan deck.
Re-setting the thermal cut-out may help to
identify the nature of the fault however we do
not recommend re-setting without a thorough
investigation into why the cut-out operated.
Figure 31 Thermal cut-out
Display panel.
Any fault will be described on the display
panel until the fault has been cleared.
temperature fault.
There are five basic checks to perform should
a fault appear on the program panel display.
These are as follows:
• Continuity: Use a multimeter to check
continuity between each end of the cable
cores.
• Short circuit: Use a multimeter to check
that there are no short circuits between
any of the cable cores.
• Plugs: Check that the plugs are firmly
seated in the circuit board sockets in both
the program panel and on the circuit board
• Addressing: (Network versions only). If two
or more air curtains are networked, check
that each base unit has a unique address as
described in
air curtain addressing on page
18.
• Network cables: Ensure that the total
run of all cables in the network does not
exceed 100m including the cable to the
program panel.
Summary of Contents for 1000E-1PH
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