Operation Manual

Appendix

homexpert

by Honeywell THR870CUK Programmable Thermostat

In case of difﬁculty

Thermostat screen

is blank

• MakesuretwofreshAAalkalinebatteriesareproperlyinstalled(see

page 25).

Heating or cooling

system does not

respond

• Checkthermostatbatteries(seeabove).

• Makesureheatingandcoolingsystemshavepower.Checkfusesand

circuit breakers and replace or reset as needed.

• Checkwiring(pages22-24)andsystemconguration(pages27-31).

• Runsystemtest(seepage26).

Desired temperature

cannot be maintained

• Ifaboveremediescannotresolvetheproblem,thethermostatmay

have to be moved. Make sure it is not installed near sources of hot or

cold air (radiators, windows, heating or cooling ducts).

Limited Warranty

Honeywell warrants this product for 1 year from date of purchase. We undertake to replace or repair at

our discretion, products should they become defective within 1 year solely as a result of faulty materials

and or workmanship.

Understandably if the product has not been installed or maintained in accordance with Honeywell’s

instructions, has not been used appropriately or if any attempt has been made to rectify, dismantle or

alter the product in any way the warranty will be invalidated.

This product warranty states Honeywell’s entire liability. It does not extend to cover consequential loss or

damage or installation costs arising from a defective product.

If the product is defective, please return it together with a proof of purchase or receipt to the place of

purchase.

This does not affect your statutory rights.

If you require further information about this product, call the homexpert

by Honeywell technical helpline

on 0845 604 2893.

For a full list of terms and conditions please visit www.homexpertbyhonyewell.com.

Please retain these instructions for future reference.