DHG Dyna-Form Mercury Advance Instructions For Use Manual page 10

12. Troubleshooting
Fault Cause
Control Unit does
The control unit may not
be attached to a power
not operate;
source or a fuse may
no display lights
need replacing
illuminate
LED C Mains failure/Other.
See above, plus:
+ Audible Warning
LED B
Pressure too low
+ Audible Warning
LED B+C Pressure too low/
+ Audible Warning Air pipe kinked
LED A Pressure too high
+ Audible Warning
LED A+B Alternating mode
+ Audible Warning
failure (no alternation)
LED A, B+C
Initialising Failure
+ Audible Warning
IFU
Solution
1. Check the Control Unit is connected to mains power outlet with the correct voltage.
2. Check the Control Unit is switched on. Switch off and unplug the unit before restarting.
3. Check the mains plug fuse (5 AMP) then check both Control Unit fuses (1 AMP) – fuses
can be released using a screwdriver to push and turn.
Do not try to open the Control Unit. Opening the unit could cause personal injury or
equipment damage.
Ensure the replacement of fuses is carried out in accordance with local legislation.
1. Check the Control Unit is connected to mains power outlet with the correct voltage.
2. Check the Control Unit is switched on. Switch off and unplug the unit before restarting.
3. Check the mains plug fuse (5 AMP) then check both Control Unit fuses (1 AMP) – fuses
can be released using a screwdriver to push and turn.
Do not try to open the Control Unit. Opening the unit could cause personal injury or
equipment damage.
Ensure the replacement of fuses is carried out in accordance with local legislation.
1. Reset the warning – turn off power and press the Audible Warning mute button.
2. Check that the CPR connector is firmly attached to the Control Unit (located on the left of
the Control Unit case). Check all air hoses along the inside of the mattress – each should
be firmly connected. Check each air cell is securely attached to its connecting air pipe.
3. Check all cells, pipes and hoses for any air leakage.
4. Check that the air filter cover is correctly secured and the air filter is clean.
5. Switch on power.
1. Check Blue external umbilical air pipe that is between mattress and CPR
connector is not kinked, twisted or damaged.
2. Check all air hoses along the inside of the mattress – each should be firmly
connected.
3. Check each air cell is securely attached to its connecting air pipe.
1. Reset the warning – turn off power and press the Audible Warning button.
2. Disconnect the air hoses to reduce pressure, reconnect when pressure has
decreased.
3. Check for twists in the air hoses between Mattress and Control Unit.
1. Reset the warning – turn off Power and press the Audible Warning mute button.
2. Disconnect the air hoses to reduce pressure – reconnect when pressure has
decreased.
1. Press the Audible Warning mute button to silence the Audible Warning.
2. Check all air hoses along the inside of the mattress – each should be firmly
connected. Check each air cell is securely attached to its connecting air pipe.
3. Check that the CPR connector is firmly attached to the Control Unit (located on
left of control unit casing).
10