Our Grundfos pump needs a new pressure switch (one pole is permanently open), I've bodged it for now but it really needs a replacement.

Grundfos Thailand are apparently here:-

947/168 Moo 12 Bangna-Trad Road Km. 3 Bangna

Bangkok, Thailand 10260

Before I trek out that way on the off chance they have a trade counter does anyone know of a retail outlet that keeps common Grundfos parts in stock?

I bought my Grundfos at this outfit in Rayong and I see they have a service outlet in Bkk somewhere per this site. Maybe a call or a trip as I know they service what they sell.

http://www.siameast.co.th/index.php?option=com_contact&view=category&catid=39&Itemid=147

Cheers longball, I'll get my step-son to give them a call, we have the part number etc. required, should be an easy job.

Not sure where you got that address for Grundfos but there web site (seems to only be in Thai) provides this address. I can confirm that was there location 2 years ago when I visited (it is a large warehouse and office combination and suspect you would enjoy a visit as all kinds of large pumps under repair in the open warehouse area during my trip. Also was a good restaurant directly across the street.

https://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=92+Chaloem+Phrakiat+Ratchakan+Thi+9+Bangkok+Thailand&aq=0&oq=92+chaloem&sll=13.68898,100.677938&sspn=0.016887,0.024848&vpsrc=0&t=h&ie=UTF8&hq=&hnear=Chaloem+Phrakiat+Ratchakan+Thi+9,+Nong+Bon,+Prawet,+Bangkok+10250,+Thailand&z=16

บริษัทกรุนด์ฟอส (ประเทศไทย) จำกัด

92 ถนนเฉลิมพระเกียรติ ร.9 แขวงดอกไม้

เขตประเวศ กรุงเทพฯ 10250

โทรศัพท์ : (+66 ) 2 725 8999 แฟกซ์: (+66 ) 2 725 8998 ศูนย์บริการลูกค้า (+66) 2 725 8900

I thought I got it off the website too, brain fade possibly.

92 Chaloem Phrakiat Rama 9 Road

Dokmai, Pravej, Bangkok 10250

Rama 9 Road is confusing as believe it is not that road - it is Chaloem Phrakiat Ratchakan Thi 9 which is in a different area and as on the Google map.