Fault finding guide.

Timer Batteries not holding their charge: Requires charging for up to 48 hours.
For C800 series timers, the brightness control must be set to minimum, otherwise battery life is only 4 hours.

Test the batteries using this guide.
Finish gate will not operate: Timer is set to two-phase.
Press 'menu' then 'clr' then 'ent' to set to normal timing.
Two phase timing will not operate: The timer is set to the wrong channel.
On C841 timers, pressing '2' at the welcome screen will set the timer for two phase using green channel heads. For any other channel, you must use the menu to select the correct channel.
In two-phase, 'E' shows and phase 2 won't start: Set phase 1 allowed time to zero.
Have the timer upgraded.
 
Poor radio receptionfrom wire-free heads: Are the aerials on the heads in good condition. If telescopic, are they extended? Check there is a red insulating washer between the aerial and the head case.
Check the heads using this guide.
For C800 series timers, check the aerial plugs firmly into its socket.

If the timer is in a Judge's box with metal windows, order an aerial extension lead so that the aerial can be mounted outside.
Heads difficult to align,or heads go in and out
of alignment:
Head and reflector must be at least 4 metres apart.
Reflector and head lenses must be clean and dry and free from mist.
Check all fixing nuts are tight.
The slightest wobble between the head and tripod will give an intermittent fault. Remove the head mounting bracket and hammer the part the fits to the tripod until it is flat and does not wobble.
Use only the correct tripods. Camera tripods and floodlighting tripods are not sufficiently stable.
Flap (yellow) display shows horizontal bar: External battery has not sufficient power.
Do not extend the battery lead.
If using mains, the mains power unit must be within 3 metres of the display - the cable from the power unit must not be extended.
Flap (yellow) display shows wrong time : DO NOT USE LUBRICANTS.
If lubricants have been used the mechanisms jams - repairs are very costly.
Contact us for display testing advice.
LED (red) display shows flashing decimal point,
no other display: 
External battery has not sufficient power.
Do not extend the battery lead.
If using mains, the mains power unit must be within 3 metres of the display - the cable from the power unit must not be extended.