Question about Honeywell Programmable Thermostat Heater
Don't know how to operaye a honywell cm61 temperature controller
Turn off ‘Optimum Start’
Step 1 Put the thermostat in the OFF position.
Step 2 Press 3 buttons together (at the same time) which are the INFORMATION BUTTON (i) and PROGRAM BUTTONS 3 & 4.
This will show a code of ICL 1 – now let go of the buttons.
Step 3 Press PROGRAM BUTTON 2.
This will now show a code of 30t 1
Step 4 Press the + BUTTON (on the left of the display), tap through until you reach 15 OP 1
Step 5 With the TEMPERATURE DOWN BUTTON; change the 01 to a FLASHING 0. Confirm the FLASHING 0 with the INFORMATION BUTTON ( i ). The 0 will now be static.
Step 6 Put the Thermostat back in the ‘AUTO’ position.
‘OPTIMUM START’ is now switched off.
Posted on Feb 12, 2009
Check out moneysavingexpert website as there is a posting from Honeywell about turning off the 'Optimum Start'. Have doen this to mine which had same problem so fingers crossed that it works.
Posted on Jan 22, 2009
I had the same problem and the fact is the system is trying to predict how long it is going to take to get to the temperature at the time required. From the PDF in the previous posting you need to set the Optimisation parameter.
Posted on Nov 24, 2008
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Posted on Jan 02, 2017
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