URGENT>>McQuay Chiller ALARM PROBLEM

[webdrops]

Hi,

i am working on McQuay Chiller and its AGR 085 Model.

the problem i am facing is that i want o check the ALARM but i tried alot by pressing alarm tab . its not showing me any alarm. buzer sound is also continuous. chiller starts for a while & then stops.

kindly quide me how can i open ALARM & see what the problem is. inorder to repair the fault.

its panel is CAREL PCO & software version is 2.7

Thanks,

[Brian_UK]

Which model PCO is it?

http://www.carel.com/carelcom/web/eng/catalogo/gamma_dett.jsp?id_gamma=1

[webdrops]

Hi,

thanks for reading & showing concern about my topic.

i found the fault & it was that the button required being pushed really HARD.

it was just Dust.

Thanks anyway.